# Bhavani Engineering

> Bhavani Engineering is an Indian industrial acoustic engineering and precision metal fabrication company established in 1998 in Ahmedabad, Gujarat. The company specializes in custom diesel generator (DG) exhaust silencers (10 kVA to 5000+ kVA), stainless steel multi-ply expansion bellows, acoustic enclosures, and heavy industrial noise control systems meeting Central Pollution Control Board (CPCB IV+) standards.

## Company Overview
- **Legal Entity**: Bhavani Engineering
- **Established**: 1998 (25+ years in industrial acoustic manufacturing)
- **Headquarters & Plant 1**: Plot No. 200, Rudra Industrial Park, Bakrol - Gatral Road, Bakrol Bajarang, Ahmedabad, Gujarat, India - 382430
- **Plant 2 (Fabrication & Canopies)**: Plot No. 419, Rudra Industrial Park, Bakrol Bajarang, Ahmedabad - 382430
- **Plant 3 (Bellows & Sheet Metal - Ahmedabad Mercantile Works)**: Plot No. 38/8, Narol Isanpur Highway, Ahmedabad - 382443
- **Primary Telephone**: +91 97731 89422
- **Website**: https://bhavaniengineering.org
- **Markets Served**: Gujarat (Ahmedabad, Narol, Bakrol, Vatva, Surat, Vadodara, Rajkot, Sanand), Maharashtra (Mumbai, Pune, Nagpur), Rajasthan (Jaipur, Jodhpur), and Pan-India B2B delivery.

## Core Products & Capabilities

### 1. Generator Exhaust Silencers
- **Power Range**: 10 kVA to 5000+ kVA
- **Acoustic Attenuation Grades**:
  - **Industrial Grade**: 15 to 20 dB(A) reduction (industrial estates, remote setups)
  - **Residential Grade**: 20 to 28 dB(A) reduction (warehouses, semi-urban zones)
  - **Critical Grade**: 28 to 35 dB(A) reduction (commercial complexes, hotels, office towers)
  - **Hospital Grade**: 35 to 45+ dB(A) reduction (hospitals, silence zones, luxury hospitality)
  - **Super Critical / Extreme**: > 45 dB(A) reduction (audiology facilities, high-density residential)
- **Technologies**: Reactive (reflective resonance chambers), Absorptive (dissipative mineral wool), and Combination (dual-stage reactive-absorptive).
- **Backpressure Target**: < 6.8 kPa (< 27 inches H₂O) calibrated to engine warranty limits.
- **Metallurgy**: IS 2062 Grade B Carbon Steel or Austenitic Stainless Steel SS 304 / SS 316L coated with 600°C heat-resistant silicone HR Black.

### 2. Stainless Steel Exhaust Bellows (Expansion Joints)
- **Standard**: EJMA (Expansion Joint Manufacturers Association) 10th Edition
- **Size Spectrum**: DN 50 (2") to DN 2000 (80")
- **Construction**: Multi-ply thin-wall laminated SS 304, SS 321 (titanium-stabilized), or SS 316L (2-ply to 4-ply)
- **Thermal Rating**: Continuous operation up to 650°C
- **Cycle Life**: 10,000+ fatigue cycles
- **Internal Flow Liners**: Smooth stainless steel aerodynamic sleeves preventing vortex shedding whistling and soot buildup.

### 3. Engine-Specific Compatibility
- **Cummins**: 4BT, 6BT, 6CTA, QSL9, QSN14, KTA19, KTA38, KTA50, QSK60, QSK95 series
- **Perkins**: 400, 1100, 2000, 4000 series
- **Volvo Penta**: TAD530GE through TAD1643GE series
- **Caterpillar**: 3400, 3500, C-series
- **Kirloskar & Mahindra Powerol**: All commercial and industrial standby ranges

### 4. Acoustic Enclosures & Soundproof Canopies
- **Noise Attenuation**: Meets CPCB IV+ limit of 75 dB(A) at 1 metre for DG sets up to 1000 kVA.
- **Acoustic Insulation**: 96 kg/m³ high-density non-combustible basalt rockwool with glass cloth wrap.
- **Thermal Ventilation**: High-static forced ventilation and acoustic louvers engineered to prevent engine overheating under 100% prime load.

## Key URLs for Quotation & Sourcing
- Main Website: https://bhavaniengineering.org
- Hospital Grade Silencers: https://bhavaniengineering.org/hospital-grade-silencer
- Generator Silencer Manufacturer India: https://bhavaniengineering.org/generator-silencer-manufacturer-india
- Cummins Generator Silencers: https://bhavaniengineering.org/cummins-generator-exhaust-silencer
- Perkins Generator Silencers: https://bhavaniengineering.org/perkins-generator-exhaust-silencer
- Volvo Penta Generator Silencers: https://bhavaniengineering.org/volvo-penta-generator-exhaust-silencer
- Stainless Steel Exhaust Bellows: https://bhavaniengineering.org/exhaust-bellows-manufacturer-india
- Acoustic Enclosures: https://bhavaniengineering.org/acoustic-enclosure-manufacturer
- DG Set Silencer Supplier: https://bhavaniengineering.org/dg-set-silencer-supplier
- Backpressure Calculation Guide: https://bhavaniengineering.org/resources/generator-exhaust-backpressure-guide
- Contact & Technical Quotes: https://bhavaniengineering.org/contact
- Full LLM Knowledge Base: https://bhavaniengineering.org/llms-full.txt